Buffing-machine.



J. J. HEYS.

BUFFING MACHINE. I APPLICATION FILED OCT. 27, 1 05. RENEWED APR. 14, 1909.

Patented Nov. 16.1909.

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BUPFING MACHINE. APPLICATION FILED 00w. 2), 1905. RENEWED APR. 14, 1909.

Patented Nov. 16, 3.909.

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f m; w Jw UNITED sraa ss PATENT orriion JOHN afnnvs, or LYNN, MASSACHUSETTS, AssIGNma, BY MEsNE ASSIGNMENTS, TO MANUFACTURERS MACHINE coMrANY, or MONTCLAIR, NEW JERSEY, A CORPORA- TION or Nnwannsnr.

BUFFING-MACHINE.

To all whom it may concern:

Be it known that 1, JOHN J. HEYS, a citizen of the United States, residing at Lynn, in the county of Essex, State ofMassachusetts, have invented an Improvement in BuflingMachines, of which the following description, in connection with the accompanyim drawings, is a specification, numerals on the drawings representing like parts.

My invention relates to machines for buffing, scouring, or cleaning the heels and soles of boots material, and particularly to improvements in the type of machines having a rotatable longitudinally reciprocating shaft bearing one or more butting rolls, and to the mechanism for reciprocating the buffer shaft.

Referring to the drawings,-Figure 1 is a front elevation of a machine selected for illustration of the-invention herein; Fig. 2, an elevation of the rightside of the machine;

Fig. 3, an enlargement of theright end of.

Fig. 1, showing the reciprocating mechanism partly in section; and, Fig. 4:, an enlargement also partly in section of the reciprocatin mechanism as shown in Fig. 2.

In the lnvention as illustratedthe machine is provided with the usual drive shaft 2 mounted in a frame 1 and carrying pulleys 3 connected by abelt sand pulleys 5, 6, with the horizontal roll shaft 7. This drive shaft carries buffing rolls 8, of any well known or desired, construction, to which are secured sheets of emery, sand aper or other abrading or polishing material 8. The shaft 7 is mounted to slide freely in tubular bearings 12, 13, secured to the frame 1 and in an intermediate bearing 14 mounted on a standard 15 on the plate 10, which is secured to the frame 1 and partially supported by a column 11. This intermediate bearing prevents the shaft 7 from lateral vibration or spring ing when the machine is operated. These bearings are provided with brass bushings 16 and caps 17 secured thereto, so as to pro vide a small space 17 for wicking, this arrangement constituting one form of dustroof hearing which I have found beneficial in using my, machine, Projecting from the upper surface of the bearing 13 is a yoke 18, its outer arm being shapedto forin a bearing 19, for an extension 20 of 'tl eroll shaft. All of the roll shaft bearings are like i and shoes, leather, or other Specification of Letters Patent. Patented NOV.fl6,1909.

Application filed October 27, 1905, Serial No. 284,595.

Renewed April 14, 1909. Serial No. 489m.

constructed to permit free reciprocation of said shaft.

Intermediate the bearings 13, 19, and loosely mounted on the roll shaft, is a cam box 20, which, While free to turn on said shaft, is prevented from sliding thereon by a collar 21, secured to the roll shaft and confined in a recess formed in the outer end of the box by the ring plate 22, secured to its outer face. This cam .box 20 is provided with parallel, slanting and opposed cam faces 23, which present between them an oblique groove 24:, slanting longitudinally to the axis of the roll shaft. This groove receives the long arms 25, of a box yoke 26, formed at the end of an eccentric rod 27 This rod is oscillated by the eccentric 28,

mounted on a shaft 29, journaled in abracket 30, on the frame plate 10, said shaft, beingdriven by a belted connection to the drive shaft. The box yoke is bent to one side of the eccentric rod at the same inclination as that of the cam faces, and the inner faces of its arms fit and slide upon the parallel flat sides 82 OfQtlfl box and the lateral slanting faces of SZ/ldYOkG arms slide upon the cam faces 23, 0 enable the cam box to receive the gyratory motion of the eccentric rod and transmit it to the roll shaft, as will be more fully described. The yoke 26 is capped by a stra 3 1 secured to the end of the yoke arms an is stem 35 ext-ending upwardly between the 85 I provided with a guide ears 36 formed upon the yoke 18. Sinceone end of the eccentric rod is secured to the eccentric at one side of the roll shaft and its other end is supported and guided by the ears 36, it is apparent that the said rod is free to move back and forth,,or up and down, see Figs, 3 and 4t, and also to oscillate about the roll shaft as a fulcrum. The yoke, 26 is confined to slide in the groove by reason of the fact that its arms straddle the box and fit closely againsflthe bearing surfaces of the groove; T e oscillations of the eccentric rod' ab0ufi the roll shaft as a center cause the yoke which par-' takes of the oscillatory movement 'to turn or: swing the box back and forth on the roll shaft but is ineffective to; move the shaft, since the box is loosely mounted only for rotation. The throw of the eccentri'c,.however, can produce but one result, namely, to cause the cam faces of the yoke to bear section by the bolts f5.

upon those of the cam-box and, in sliding thereon, force the roll shaft back and forth longitudinally and transversely to the move ment of the eccentric. v

It will be observed that my eccentric rod forms a direct connection between the roll shaft and the eccentric and constitutes a sliding means that acts directly upon said shaft to produce the longitudinal reciprocation referred to. y

To cooperate with the roll shaft and the buffing rolls mounted thereon, I provide an exhaust fan 39, mounted in a casing or hood 9, the fan being driven by the usual belted connectionto the drive shaft. This hood is removably supported upon the frame rear wardly of the roll shaft, the flat base portion 4:2 of said hood, resting upon the flat top 40 of a hollow standard, being tapped to receive the end of a bolt 43 seated against the plate 10 of said frame and passing through the said standard. This hood is divided ap proximately vertically into two sections, a-

froht section l6 and a. rear section 4%, the latter being removably secured to the front The front section is provided-with bearings 47, having caps 48 removably secured thereto, receiving be tween them the journals 41 of an exhaust fan 39. ,Formed in the side walls of the front section and leading outwardly from the heartwo sections in the manner described it is apparent that either or both may be removed without stopping the rotation of the buffing ro ls. I

WVhile I have shown my hood as adapted to- (:06 erate with an exhaust fan, I am not limite to such use.

The machine .is operated by rotating the drive shaft, its power being communicated to the shaft 7 to rotate the butting rolls to drive the exhaust fan and to rotate the shaft 29. The rotation of shaft 29 causes the throw of the eccentric 28 to reciprocate the eccentric rod 27 and its yoke 26. The. reciprocation of the yoke in the fixed path in which it is compelled to travel, forces the cam box to reciprocate longitudinally, and

' in so doing move the roll shaft with it. As

a result the roll shaft and the butting rolls mounted thereon are reciprocated longitudinally simultaneously with their rotation, the resulting compound motion roducing all the beneficial results characterizing this type of'machine.

The exhaust fan prevents charging the air with dust and the accumulations of dust or abradmg material on the work and from col looting about the bearings; bufis, or pol ishers.

Claims.

1. A bufiing machine comprising, in combination, a shaft having a buffing roll mounted thereon, bearings for'said shaft in which it is free to rotate and move longitudinally, a cam-box mounted loosely on said shaft to. turn independently thereof, means connecting the cam-box with the shaft to cause said shaft and cam-box to move together in an axial direction, said cam-box having an inclined groove or Way, 30 a box-yoke fitting said inclined groove or way, and means to move the box-yoke transversely of the cam-box to impart to the latter and said shaft movement in an axial direction. v

2. A bufling machine comprising, in combination, a shaft having a bufling roll mounted thereon, bearings for said shaft in which it is free to rotate and move longitudinally, a cam-box mounted loosely on said shaft to turn independently thereof, means connecting the cam-box with the shaft to cause said shaft and cam-box to move together in an axial direction, said cam-box having an inclined groove or way, 5 a box-yoke fitting said inclined groove or way and provided with a guide stem, and means to move the box-yoke transversely of the cam-box to impart to the latter and said shaft movement inan axial direction.

3. A bufiing machine comprising, in combination, a shaft, buffing rolls secured thereto, a cam-box on said shaft and having an inclined roove or way, a collar connecting the camox to said shaft to permit rela- 5 tive rotative and revent relative longitudinal movements of said shaft and cam-box,

a box-yoke fittin the inclined groove or way of said camox, a guide stem secured to said box-yoke, ears on the frame embrac- 0 ing said guide stem, and means to move the box-yoke transversely of said cam-box to impart to the latter and said shaft movebination, a shaft, buihng rolls secured thereto, a cam-box on said shaft and having an inclined roove or Way, a collar connecting the camhox to said shaft to permit relative rotative and revent relative longitu- 2o dinal movements of said shaft and cam-box, a box-yoke fitting the inclined groove or way of said-cam-box, a uide stem secured to said box-yoke, ears on t e frame embracing said guide stem, an eccentric, connections be- 125, tween said eccentric and the box-yoke, and means for operatin said eccentric. 5. A bufiing mac ine comprising a shag a bulhng tool carried thereby, means for r0- tating said shaft, a yoke 18 having a bearing 1 ww aw for the extension of side? shaft a cm-bm:

an inclinevl groove or way, means colmacting the cam-b0x 2115i shaft to cause thm in move together in in: axial direction ears 36 carried by the yoke, a box-yoke having an ind portion engaging the inclined groove- 01 \\'21\ in the cam-box and provided with a I guide 511 3111 35, and means fer recipmcating 'iuesely m-aunted on said.- shai't and havingsaid be -yoke transversely of said cam-box,

as and for jaha purposedescribed.

In iastimony whereof, I have signed my name to this specification, in the presence of two subscribing Witnesses.

JOHN J. HEYS. Witnesses FREDERICK L. Emm ROBERT H. KAMMLER. 

